______ at the door before you enter my room, please.
| A．Knock | B．Knocking | C．Knocked | D．To knock |
We have eight foreign teachers in our school,five of _______ are young ladies.
| A．them | B．whom | C．who | D．which |
I work in a business _______ almost everyone is waiting for a great chance.
| A．how | B．which | C．where | D．that |
We are living in an age _______ many things can be done on computers and the Internet.
| A．which | B．that | C．whose | D．when |
There was _______ time _______ I hated to go to school.
| A．a；that | B．a；when | C．the；that | D．the；when |
Anyway, that evening, _______ I’ll tell you more about later,I ended up staying at Rachels place.
| A．when | B．where | C．what | D．which |